Cutting mechanism for folding-machines.



PATENTED NOV. 14, 1905:

H K. KING.

CUTTING MECHANISM FOR FOLDING MACHINES.

APPLIUATION FILED AUG.23,1904.

7 SHEETS-SHEET l.

WITNESSES fi CM/ MW z No. 804,476. PATENTED NOV. 14, 1906.

' H. K. KING.

CUTTING MECHANISM FOR FOLDING MACHINES.

APPLICATION FILED AUG.23,1904.

7 SHEETS-SHEET 24 M/i TESSES IN VEN TOR Madman/r ATTORNEY.

PATENTED NOV. 14, 1905.

H. K. KING. CUTTING MECHANISM FOR FOLDING MACHINES.

APPLICATION FILED AUG. 23, 1904.

'i' SHEETSSHEET 3.

INVENTOI? Ww md/L B s S M W W PATENTED NOV. 14, 1905.

H. K. KING.

CUTTING MECHANISM FOR FOLDING MACHINES.

APPLICATION FILED AUG.23,1904.

7 SHEBTS-SHEET 4.

No. 804,476. PATENTED NOV. 14, 1905. H. K. KING. CUTTING MECHANISM FORFOLDING MACHINES.

APPLICATION FILED AUG.23,1904.

7 SHEETS-1133! 5.

PATENTED NOV. 14, 1905.

H. K. KING.

'7 SHEETS-SHBET 6.

CUTTING MECHANISM FOR FOLDING MACHINES.

APPLICATION FILED AUG. 23, 1904.

MM 1% M WITNESSES PATENTED NOV. 14, 1905.

H. K. KING.

CUTTING MECHANISM FOR FOLDING MACHINES.

APPLICATION FILED AUG.23,1904.

'I SHEETS-SKEBT I.

WWW

@btovmm rerun ATS PATENT FIQF.

HOWARD K. KING, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CHAMBERSBROTHERS COMPANY, A CORPORATION OF PENN- SYLVANIA.

CUTTIING MECHANISM FOR FOLDIINGNVIACHINES.

Specification of Letters Patent.

Patented Nov. 1 1, 1905.

Application filed. August 23, 1904.. Serial No. 221,882.

To u/ZZ whom, it may concern.-

Be it known that I, HOWARD K. KING, a citi- Zen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and useful Cutting Mechanism forFolding-Machines, of which the following is a specification.

My invention relates to cutting mechanism for folding-machines.

The object of my invention is to provide improved means for incising orcutting the sheet at intervals along the line of the proposed fold, thepurpose of which, as is well known in the art, is to prevent thebuckling or wrinkling of the sheets when a number of sheets are foldedtogether in two directions and also to facilitate the separation of theouter edges of the sheet when the same are formed into a pamphlet orbook.

My invention comprises simple and eificient means for securing a cleancut by the shearing action of the cutting-knife in cooperation withthesupporting-plate over which the sheet passes.

My invention comprises simple and efiicient means for holding the sheetfirmly to the supporting-plate during the cutting operation.

My invention comprises means whereby the sheet is bent to cause theopening of the incisions to permit the release of the knifepoints, andthereby facilitate the stripping of the sheet therefrom.

My invention also comprises various improvements in details ofconstruction.

Referring to the drawings, Figure 1 is a plan view of a folding-machinecomprising my improved means, portions being broken away to show partswhich would otherwise be obscured. Fig. 2 is a cross-section on line 2 2of Fig. 12. Fig. 3 is a side elevation of the machine in the preliminaryposition. Fig. 1 is a sectional elevation on line 41 1 of Fig. 1. Fig. 5is a cross-section on line 5 5 of Fig. 4.. Fig. 6 is a view similar toFig. 41 with some of the parts omitted. Fig. 7 is an enlargedcross-section of the slit mechanism and folding-rollers. Fig. 8 is aview similar to Fig. 6 with the parts in different positions. Fig. 9 isa cross-section, on an enlarged scale, of the folding and cutting bladesand slit mechanism in a slightly-different position from that shown inFig. 8. Fig. 10 is a sectional eleing one form of cuts or incisions.

vation on line 10 10 of Fig. 1. Fig. 11 is a plan View of the partsshown in Fig. 10. Fig. 12 is asectional elevation on line 12 12 ofFig. 1. Fig. 13 is a plan View of the parts shown in Fig. 12. Fig. 14 isa side elevation of the parts shown in Figs. 12 and 13. Fig. 15 is asectional view on line 15 15 of Fig. 1, the shaft, however, being shownsolid. Fig. 16 is a diagrammatic view showing a sheet hav- Fig. 17 is anelevation of the form of blades suitable for making the cuts orincisions shown in Fig. 16, the same, however, beingon an enlargedscale. Fig. 18 is a diagrammatic view of a portion of a sheet, showinganother form of incisions. Fig. 19 is an elevation of a blade suitablefor making the incisions shown in Fig. 18. Fig. 20 is a vertical sectionon line 20 20 of Fig. 19. Fig. 21 is an elevation of the clampingmechanism used in connection with thecntting-blade. Fig. 22 is avertical cross-section on line 22 22 of Fig. 21.

Similar numerals refer to similar parts throughout the several views.

l oldt'ng blade support and (wuctti0a.- Since my improved cutting meansis adapted for use in connection with well-known forms offolding-machines, I confine the description of my invention to the partspeculiar thereto and such essential mechanism as may be necessary forapplying the same to a folder, and as there may be a cutter working inconnection with each fold it will only be necessary to describe one ofthese devices in detail and indicate the method of connecting up theothers therewith.

Referring to Figs. 1 and 1, the folding-blade 1 is supported at the freeends of arms 1. These arms 1 are keyed to the sleeve 2, which is looselymounted on the shaft 3. The shaft 3 is journaled at each end in thestationary framework of the machine. The arms or extensions 5 and 32 areeither integral with the arm 1 or so keyed to the sleeve 2 as to berotatably rigid therewith. The cam-arm 4: is also mounted on the sleeve2 and is ad justably locked in the desired angular position with respectto arm 1 by the set-screws 33 upon arm 32. The free end of arm orextension 5 is pivotally secured to the spring-actuated rod 6. Thecam-arm 4 is provided at its free end with the antifriction-wheel 1,which is adapted to engage with the periphery of cam 28, which ismounted on shaft 28, said shaft being suitably geared with the otheroperating parts of the machine.

Cutting-blade support and act uatz'ma The cutting-blade 13 is secured tothe angle-iron 12, which is supported at the free ends of the arms 7.The arms 7 are keyed to the shaft 3. The arm 8 is also rotatably rigidwith the shaft 3, having its free end pivotally connected with thespring-actuated rod 10. This rod 10 is adapted to slide in the boss 11,connected with the framework of the machine, and is provided at itslower extension with the locknuts 10 as adjustable means for limitingits upward movement. A compression-spring surrounds the rod 10 andengages at one end the boss 11 and at the other end a collar secured tosaid rod. To arm 7 is ad justably secured by bolts operating in a slotthe lug 9, which is adapted to project over and engage with arm 1,thereby coupling said two arms together. By this means the movement ofarm 7, due to the actuation of the spring-rod 10, is controlled by thecam-operated arm 1 until after the cutting operation is completed. Themovement of arm 7 is then arrested by the engagement of lock-nuts 10withboss 11, and the folding-blade on arm 1 continues its downward movement,independent of arm 7, to deliver the sheet to the folding-rollers. Uponthe upward or return movement of arm 1 the lug 9 is again encounteredand the arm 7 is raised to the initial position. seen that thecutter-arm 7 has no movement independent of the folding-arm 1.

Sheet-pressing172ec/Mmi-9m.To the ends of the angle-iron 12 are securedthe brackets 14, (see Figs. 2, 12, 13, and 14,) and in these brackets 14are provided the ways 15. These ways 15 are adapted to receive theplates 17, which are secured one at each end to the T- iron 16. Theseplates 17 are adapted to slide in the ways or channels 15, andconsequently independent vertical movement will be permitted between theangle-iron 12 and the T- iron 16. To the guide-plates 17 are secured theextensions 18, (see Figs. 13 and 14,) and to these extensions 18 areconnected the tension-springs 19, whose other ends are secured to studs20, connected with the stationary part of the machine. The springs 19normally holdextensions 18 against the brackets 14 of angle-iron 12until the posts 21 are engaged by said extensions 18 upon the downwardmovement of arms 1 and 7 and before the knife 13 enters the slit betweenmembers 34 and 35. The posts 21 project from the framework of themachine and are adapted to engage with the extensions 18 to limitthedownward spring-actuated movement of T-iron 16. Upon the return orupward movement of the cutting-knife 13 and its supporting angle-iron 12from. the position shown in Fig. 14 to the position shown, for example,in Fig. 4 the bracket 14 engages the extension 18 to cause It will thusbe the elevation of T-iron 16. It will be understood that during theengagement of 14 and 18 the members 12 and 16 are mechanically fixed. Onthe under side of the T-iron 16 are provided the bosses 22. Throughthese bosses 22 extends rod 23, which supports sections 24 of rubbertubing. Upon the downward movement of the T-iron 16 these rubbersections 24 are adapted to be compressed against the sheet over plate35, as and for the purpose hereinafter described.

812' t mechanism. The slit mechanism which is adapted to cooperate withthe folding-blade and also with the cutting-bladeis constructed asfollows: The two parallel plates 34 and 35 are mounted on theangle-irons and 26. The angle-irons 25 and 26 are provided at each endwith axles 36 and 36 and 37 and 37 which are journaled in the stationaryframework of the machine. Upon the shaft 38, which is suitably gearedwith the other operating parts of the machine, are mounted the cams 39and 40. Cam 39 is adapted to engage with the antifriction-wheel 41,which is mounted on the free end of arm 42, which is operatively rigidwith the axle 36, so that the actuation of arm 42 by the rotation of cam39 causes the rocking actuation of plate 34 of the slit mechanismagainst the pressure of spring 34. (See Fig. 1.) The cam 40 is similarlyadapted to engage and cooperate with the antifriction-wheel 43, securedto the the free end of arm 44, which is operatively rigid with axle 37,to cause the rocking actuation of the other plate of the slit mechanismagainst the pressure of spring 35. It will thus be seen that by arotation of shaft 38 the plates 34 and 35 are rocked from the levelposition, as shown, for instance, in Figs. 6 and 10, to the open ortilted positions shown, for instance, in Fig. 9 and back to the levelposition, and it will be obvious that by the well-known method of gearsthe rotation of shaft 38 may be so timed with the rotation of shaft 28of cam 28 that the rocking of the slit mechanism will have the requiredrelation with the reciprocative movement of the folding-blade, andconsequently also of the cutter-blade.

In the device illustrated in the drawings I have provided the shaft 38and cams 39 and 40 in connection with a second slit mechanism of themachine and have connected the arms 42 and 44 of said slit mechanism bythe connecting-rods 45 and 46 (see Figs. 3 and 10, respectively) withsimilarly-mounted plates of the first slit mechanism, so that theoperation of one slit mechanism will cause the op-.

eration of another slit mechanism.

The operation of my device is as follows: Before the sheet travelingupon the tapes reaches the slit mechanism the cam 39 has reached suchposition as to tilt plate 35 of the slit mechanism shown -in Fig. 10 orplate 34 of slit mechanism shown in Figs. 6 and 7 into the positionshown in Fig. 7-that is, with its edge toward the advancing sheetdepressed below the plane of the other plate, so that said edge will notencounter the edge of the advancing sheet and thereby obstruct it. Theshape and actuation of the cam 39 are such that after the edge of theadvancing sheet has passed over plate 34 or 35, as the case may be,

the plate is brought back to the level position,.

as shown in Figs. 4 and 10, so that said slit mechanism will be incondition for most efficient cooperation with the cutting-blade 13. Whenthe sheet reaches the proper position on the tapes over the slit andfoldingrollers, the cam 28 has assumed such a position as will permitthe downward movement of arm 1, bringing with it the arm 7,cutting-blade 13, and presser-rubbers 24. This serves first to compressthe rubbers 24 upon the sheet over the plate 35 until the projections 18engage with post 21, as shown in Fig. 14. Theknife then continues todescend until it reaches the position shown in Fig. 6, when the cuttingoperation has been completed. The further movement of cam 39 and also ofcam 40 now brings the plates 34 and 35 into the position shown in Fig.8, when it will be noted the plate 35 has come clear of thepresser-sections 24, so that the sheet is now free to travel with theknife into the gradually-incri-zasing slit between the tilted plates 34and 35. No further cutting of the sheet by the knife 13 can take placeafter the release of the sheet by the presser-sections 24. The bending,however, of the sheet into the slit by the knife 13 serves to open theincisions made by the knife in the sheet, so that the sheet may bereadily disengaged from the knife. After the knife has come to restbecause of the engagement of nuts 1O with boss 11 the folding-blade 1continues to descend and strips the sheet from the knife and carriesdown to the folding-rollers 29 and 30. It will be noted upon aninspection of Figs. 19 and 20 that the serrated knife is beveled on oneside only, so that the cutting edge of said knife will lie entirely inthe plane of the other or flat side. Referring, for instance, to Fig. 6,it will be seen that the cutting edge of this knife is adapted toencounter the sheet close to the margin of plate 35 of the slitmechanism and to slide close against the edge of said plate, so as toform a shear therewith. This results in a clean smooth out of the sheetwithout danger of crumpling or tearing the fiber. The cam 28 is soformed as to arrest the downward movement of the cutting-knife at themoment tinues to the limit secured by the nuts 10 engaging boss 11. Thefolding-blade then con tinuing the downward movement due to the form ofthe cam 28 strips the sheet from the cutting-knife and delivers it tothe foldingrollers 29 and 30. After the folding-blade has delivered thesheet to the rollers it is raised by the further rotation of cam 28. Inits upward movement the arm 1 encounters the lug 9, connected with arm7, thus carrying the elements connected with said two arms to theinitial position. The shape of cam 28 at the point of engagement betweenarm 1 and lug 9 is such as to retard the upward movement of arm 1approximate the point of said engagement-that is, the cam movement is avery gradual one just before the engagement of arm 1 and lug 9, so as toprevent a shock or impact as the result of such engagement.

hat I claim is- 1. In combination with a folding-machine having areciprocative folding blade, the mechanism for making a line ofincisions in a sheet comprising a series of cutting-points,reciprocative supporting means therefor controlled by the folding-blade,a sheet-supporting plate for cooperating therewith, and sheetpressingmeans having lost-motion engagement with said reciprocative supportingmeans.

2. In combination with a folding-machine having a reciprocativefoldingblade, the mechanism for making a line of incisions in a sheetcomprising a series of cutting-points, reciprocative supporting meanstherefor controlled by the folding-blade, a pair of horizontal platesspaced apart in the same plane to form a slit for receiving thecutting-points, and means operated relatively with the reciprocativesupporting means for depressing the oppositely-disposed edges of saidplates.

3. In combination with a folding-machine having a reciprocativefolding-blade, mechanism for making a line of incisions in a sheetcomprising a series of cutting-points, recip roeative supporting meanstherefor, con-. trolled by the folding-blade, a pair of parallel platesspaced apart in the same horizontal plane to form a slit for receivingthe cuttingpoints, means for pressing the sheet to one of the platesduring the cutting operation, and means operated relatively with thereciprocative supporting means for depressing the oppositely-disposededges of said plates.

4. In combination with a folding-machine having a reciprocative foldingblade, the mechanism for making a line of incisions in a sheetcomprising a series of cutting-points, reciprocative supporting meanstherefor, con trolled by the folding-blade, slit mechanism forcooperating therewith comprising a pair of parallel plates, means forpressing the sheet to one of the plates during the cutting operation,and means operated relatively with the reciprocative supporting meansfor depressing the oppositely-disposed edges of the plates and so as torelease the sheet from the pressing means.

5. In combination with a folding-machine, cutting mechanism adapted tomake incisions in the sheet along the line of the proposed fold and thento bend the sheet to cause the incisions to open to facilitate theremoval of the sheet therefrom.

6. In combination with a folding-machine comprising a folding-blade andslit mechanism, means for making incisions in the sheet along the lineof the fold and means for operating the slit mechanism at the propermoment to prevent further cutting of the sheet.

7. In combination with a folding-machine, comprising a folding-blade andreciprocating supporting means therefor, a cutting-knife controlled bysaid reciprocating supporting means and two parallel plates spaced apartin the same horizontal plane to form a slit for receiving thefolding-blade and cutting-knife, one of said plates cooperating with theknife to form ashear therewith, and means for rocking the same.

8. In combination with a folding-machine, means for cutting the sheetalong the line of the proposed fold and sections of resilientmaterialcontrolled by the cutting means for engaging the sheetduring thecuttingoperation.

9. In combination with a folding-machine comprising a folding-blade anda cam-controlled reciprocatingsupporting-arm therefor, a second movablesupporting-arm, a cuttingblade and sheet-pressing means supportedthereby, and means whereby the foldingblade controls the movement of thesecond supporting-arm.

10. In combination with a folding-machine comprising a folding-blade anda cam-controlled reciprocating supporting-arm therefor, a cutting-blade,pivotally-movable supporting means therefor, and means whereby thefolding-blade controls the movement of the cutting-blade.

11. In combination with a folding-machine comprising a folding-blade anda cam-controlled reciprocating supporting-arm therefor, a cutting blade,movable supporting means therefor having the same axis of movement asthe folding-blade, and means whereby the folding-blade controls themovement of the cutting-blade.

12. In combination with a folding-machine comprising a folding-blade anda spring-actuated cam-controlled reciprocatingsupportingarm therefor, acutting-blade, movable supporting means therefor, and means whereby thefolding-blade controls the movement of the cutting-blade.

13. In combination with a folding-machine comprising a folding-blade andreciprocating supporting-arm therefor,a second supportingarm, acutting-blade and sheet-pressing means secured thereto, and means forcoupling the supporting-arm of the cutting-blade With that of thefolding-blade.

14. In combination with a folding-machine comprising a folding-blade anda reciprocating supporting-arm therefor, a second reciprocating arm, acuttingblade and sheet-pressing means supported thereby, and adjustablemeans for coupling the supporting-arms of the cutting-blade and thefolding-blade.

15. The combination of a fold ing-blade and slit mechanism forcooperating therewith, said slit mechanism comprising a normally hori-Zontal plate extending transversely the line of travel of the sheet, andmeans operating relatively with the folding-blade for depressing theedge of the plate toward the advancing edge of the sheet to permit thepassage of the sheet thereover without obstruction.

16. The combination of a folding-blade and slit mechanism forcooperating therewith, said slit mechanism comprising two parallelnormally horizontal plates, and means operating relatively with thefolding-blade for depressing the edge of one plate to permit the passageof the sheet thereover without obstruction.

17. The combination of a folding-blade and cutting-knife, and slitmechanism for cooperating therewith, said slit mechanism com prising anormally horizontal plate and means operating relatively with thefolding-blade for depressing the edge of the plate to permit the passageof the sheet thereover without obstruction and then restoring the plateto position for cooperating with the cuttingknife.

18. The combination of a folding-blade and cutting-knife, and slitmechanism for cooperating therewith, said slit mechanism comprising twoparallel normally horizontal plates and means operating relatively withthe foldingblade for depressing the edge of one plate to permit thepassage of the sheet thereover without obstruction and then restoringthe plate to position for cooperating with the cuttingknife.

19. The combination of a folding-blade and cutting-knife, and slitmechanism for cooperating therewith, said slit mechanism comprising twoparallel normally horizontal plates and means, operating relatively withthe foldingblade, for depressing the edge of one plate to permit thepassage of the sheet thereover with out obstruction, then for restoringthe plate to position for cooperating with the cuttingknife, and thenfor tilting both plates to prevent further cutting by the downwardmovement of the knife.

20. In combination with a folding-machine, sheet-cutting mechanismcomprising a beveled knife having its cutting edge in the plane of oneside only, a cooperating supporting-plate for the sheet forming a shearwith the knife, and means for moving the supporting-plate, after therequired incision is made by the knife, to prevent further cutting ofthe sheet thereby.

21. In combination With a folding-machine, a cutting device comprising areciprocative serrated knife having its cutting edge in the plane of oneside only, a supporting member for the sheet adapted to form a shearwith the knife, and means for moving the supportingplate, after therequired incision is made by the knife, to prevent further cutting ofthe sheet thereby.

22. In combination With a folding-machine, sheet-cutting mechanismcomprising a beveled knife having its cutting edge in the plane of oneside only, a cooperating supporting-plate for the sheet, forming a shearWith the knife, means for moving the supporting-plate, after therequired incision is made by the knife, to prevent further cutting ofthe sheet thereby, and pressing mechanism having lost-motion engagementWith the knife-supporting means for engaging the sheet on said plateduring the cutting operation.

23. In combination With a folding-machine, a cutting device comprising areciprocative serrated knife having its cutting edge in the plane of oneside only, a supporting-plate for the sheet adapted to form a shear withthe knife, means for tilting the supporting-plate, after the requiredincision is made by the knife, to prevent further cutting of the sheetthereby, and pressing mechanism having lostmotion engagement With theknife-supporting means for engaging the sheet on said plate during thecutting operation.

24. In combination with a folding-machine, means for making incisions inthe sheet along the proposed fold, comprising acutting-blade andreciprocativc supporting means therefor, a cooperating supporting-platefor the sheet, and presser mechanism, having slidable engagement withthe supporting mechanism of the cutting blade, for pressing the sheetagainst the supporting-plate during the cutting operation.

525. In combination With a folding-machine, means for making incisionsin the sheet along the proposed fold, comprising a cutting-blade andreciprocative supporting means therefor, a cooperating supporting-platefor the sheet, presser mechanism, having slidable engagement With thesupporting mechanism of the cutting-blade, for pressing the sheetagainst the supporting-plate during the cutting operation, and means fortilting the plate to release the sheet after the required incision ismade by the cutting-blade.

HOWVARD K. KING.

WVitnesses:

EUGENE ZrncLnR, IVIAE 'I'IOFMANN.

